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Re: Head gasket leak? [message #328265 is a reply to message #328260]

Mon, 15 January 2018 20:25

Larry

Messages: 2875
Registered: January 2004
Location: Menomonie, WI

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Senior Member

[quote title=Matt Colie wrote on Mon, 15 January 2018 19:12][quote title=

Back to the high crankcase pressure. There is a PCV valve plugged into the right side cylinder head cover. These can go bad and cause high crankcase pressure. When you are under there next, pull that device out of the rubber grommet it is in and do this very precise and technical performance test: Shake it.... If it rattles, it is good. If it does not, replace it.

[/quote]

There is also a breather filter on one of the valve covers. They can also get plugged and cause high crankcase pressure leading to excessive oil seeping out various places and in extreme cases can lead to excessive oil consumption. Don't ask how I know this... Wink

Larry

78 Royale w/500 Caddy
Menomonie, WI.

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[Message index]

		Head gasket leak? By: Jimmy_Bonez on Mon, 15 January 2018 18:01
		Re: Head gasket leak? By: 77Royale on Mon, 15 January 2018 18:29
		Re: [GMCnet] Head gasket leak? By: jimk on Mon, 15 January 2018 18:54
		Re: [GMCnet] Head gasket leak? By: Matt Colie on Mon, 15 January 2018 19:18
		Re: Head gasket leak? By: Matt Colie on Mon, 15 January 2018 19:12
		Re: Head gasket leak? By: Larry on Mon, 15 January 2018 20:25
		Re: [GMCnet] Head gasket leak? By: bdub on Mon, 15 January 2018 20:25
		Re: [GMCnet] Head gasket leak? By: bdub on Mon, 15 January 2018 20:32
		Re: [GMCnet] Head gasket leak? By: tphipps on Tue, 16 January 2018 07:55
		Re: [GMCnet] Head gasket leak? By: Ken Burton on Tue, 16 January 2018 10:14
		Re: Head gasket leak? By: Jimmy_Bonez on Tue, 16 January 2018 10:47
		Re: [GMCnet] Head gasket leak? By: Richard Denney on Tue, 16 January 2018 11:08
		Re: Head gasket leak? By: Jimmy_Bonez on Fri, 19 January 2018 21:46
		Re: Head gasket leak? By: 77Royale on Sat, 20 January 2018 11:14
		Re: Head gasket leak? By: Jimmy_Bonez on Sat, 20 January 2018 12:04
		Re: Head gasket leak? By: tphipps on Sat, 20 January 2018 17:28
		Re: Head gasket leak? By: Ken Burton on Sun, 21 January 2018 04:14
		Re: [GMCnet] Head gasket leak? By: USAussie on Sun, 21 January 2018 04:52
		Re: [GMCnet] Head gasket leak? By: Ken Burton on Sun, 21 January 2018 05:40
		Re: Head gasket leak? By: Jimmy_Bonez on Wed, 24 January 2018 09:23
		Re: Head gasket leak? By: Ken Burton on Wed, 24 January 2018 19:47
		Re: Head gasket leak? By: JohnL455 on Wed, 24 January 2018 09:46
		Re: Head gasket leak? By: shaunone on Thu, 25 January 2018 08:20
		Re: Head gasket leak? By: Larry on Thu, 25 January 2018 10:32
		Re: Head gasket leak? By: shaunone on Thu, 25 January 2018 13:00
		Re: Head gasket leak? By: jhbridges on Thu, 25 January 2018 12:58
		Re: Head gasket leak? By: Ken Burton on Thu, 25 January 2018 18:45
		Re: Head gasket leak? By: Jimmy_Bonez on Thu, 25 January 2018 20:24
		Re: Head gasket leak? By: Ken Burton on Thu, 25 January 2018 22:05

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